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Comparative Assessment of Different Transition Criteria for Crossflow Instabilities

Höchel, Maximilian and Francois, Daniela Gisele (2021) Comparative Assessment of Different Transition Criteria for Crossflow Instabilities. In: 20. STAB-Workshop - Jahresbericht 2021, pp. 35-36. 20. STAB-Workshop 2021, 16.-17.11.2021, Göttingen, Deutschland.

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Official URL: https://www.dlr.de/as/Portaldata/5/Resources/dokumente/veranstaltungen/stab_workshop/STAB-Jahresbericht-2021.pdf

Abstract

The crossflow (CF) velocity profile of a three-dimensional boundary layer can become unstable and trigger laminar-turbulent transition [1]. The effect can be simulated by Reynolds-averaged Navier-Stokes (RANS) computations using a local correlation-based transition model, for example the γ-Reθt model [2], together with an appropriate model extension that captures the CF-dominated transition [3]. For a high Reynolds number, the current extensions in the DLR TAU code result in transition locations too upstream with respect to the experimental reference locations, and therefore they have to be modified in order to extend their application range. The two existing CF extensions, based on the C1 criterion and a helicity criterion [3], respectively, are investigated to identify the potential of improving them by the recalibration of specific model parameters.

Item URL in elib:https://elib.dlr.de/145876/
Document Type:Conference or Workshop Item (Speech)
Title:Comparative Assessment of Different Transition Criteria for Crossflow Instabilities
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Höchel, Maximilianmaximilian.hoechel (at) dlr.deUNSPECIFIED
Francois, Daniela GiseleDaniela.Francois (at) dlr.deUNSPECIFIED
Date:17 November 2021
Journal or Publication Title:20. STAB-Workshop - Jahresbericht 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 35-36
Editors:
EditorsEmailEditor's ORCID iD
UNSPECIFIEDSTABUNSPECIFIED
Series Name:Jahresbericht
Status:Published
Keywords:Transition transport model, Transition criteria, Crossflow
Event Title:20. STAB-Workshop 2021
Event Location:Göttingen, Deutschland
Event Type:Workshop
Event Dates:16.-17.11.2021
Organizer:DLR, STAB
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Digital Technologies
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > CASE, GO
Deposited By: Francois, Daniela Gisele
Deposited On:05 Jan 2022 10:40
Last Modified:22 Feb 2022 18:21

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